Method of and apparatus for measuring the inside information of

Details Method of and apparatus for measuring the inside information of Method of and apparatus for measuring the inside information of

1989-12-15

1991-10-15

Willis, Davis L.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356 41, 128633, G01N 2149

Patent

active

050576950

ABSTRACT:
The present invention utilizes the difference of light reception data generated based on the difference in length of substantial optical diffusion paths between a single light receiving point and a plurality of irradiation points, or between a plurality of light receiving points and a single irradiation point. According to the present invention, the inside information of substance based on the difference in length of the optical diffusion paths, may be measured. Even though measurements are made under different measuring conditions as to the part to be measured, the measuring time, etc., there may be obtained reliable measured data of the inside information with good reproducibility.

REFERENCES:
patent: 3638640 (1972-02-01), Shaw
patent: 4223680 (1980-09-01), Jobsis
patent: 4621643 (1986-11-01), New, Jr. et al.
patent: 4714080 (1987-12-01), Edgar, Jr. et al.
patent: 4819752 (1989-04-01), Zelin
patent: 4846183 (1989-07-01), Martin
patent: 4907594 (1990-03-01), Muz

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